00661    a2200157   4500003000500000005001700005020001500022040000900037082001200046100001600058245004100074260004900115300001400164505030000178650002500478Nust20221202114410.0  a0156225662  cNust  a539,PAR  aDavid, Park  aContemporary physics / cDavid, Park  aNew YorkbHawcourt Bruce and world incc1964  aviii: 175  aMathematical Philosophy (Page-1), The Atomic Picture of Nature (Page-19) Fields (Page-31), Gravity (Page-55), The Mossbauer Effect (Page-69), Elementary Particles (Page-79), Physics at High Energies (Page-99), Cooperative Phenomena (Page-131), Lasers (Page-151), Symmetry  in Nature (Page-159).   aContemporary physics